white, solid, floccose then glabrous; sp. 4 2.

[=vulpecula=, Kalchb. P. exp. depr. gilvous-rufescent; g. acutely adnate, narrow; s. hollow, naked, whitish.

=socialis=, Fr. P. 2-3 cm. umb. even, yellowish-red; g. tinged yellow; s. 2-3 cm. reddish, rooting base hairy; sp. ----.

Stem strigose as in _Marasmius personatus_.

+++ _Pileus becoming yellowish._

=amarella=, Pers. Smell strong, taste bitter. P. 4-5 cm. plane, sub.u.mb.

reddish-yellow or fawn colour; g. tinged grey, shining; s. 4-5 cm.

pallid grey, white down at base; sp. ----.

[=veneris=, Fr. P. exp. gibbous, yellow; g. crowded, shining white; s.

elastic, glabrous, white.

=vernicosa=, Fr. P. 4-7 cm. obtuse, even, glabrous, gilvous or deep yellow; g. yellow; s. 2-3 cm. glabrous, yellow; sp. ----.

Distinguished from _Trich. cerinum_ by decur. gills.

=venustissima=, Fr. P. 3-5 cm. exp. obtuse, striate, orange, tinged red; g. decur. orange; s. 3-4 cm. long, glabrous, orange-red; sp. 6 3.5.

=alutacea=, Cke. and Ma.s.s. P. 1-1.5 cm. convex then umbil. edge incurved, even, tan; g. narrow, crowded, arcuate, decur. paler than p.; s. 3-4 cm. smooth, pale; sp. 6 4.

=subalutacea=, Batsch. P. 3-5 cm. plano-depr. obtuse, yellowish then pale; g. broad, whitish; s. 4-5 cm. firm, elastic, glabrous; sp. ----.

++++ _Pileus greenish or pallid._

=odora=, Sow. Smell fragrant. P. 4-5 cm. wavy, pale, dingy opaque green; g. adnate, not crowded, pallid; s. 3-4 cm. elastic; sp. 6-8 4-5.

=Trogii=, Fr. Smell fragrant. P. 4-5 cm. compact, greyish white; g.

crowded, white; s. 4-5 cm. whitish, solid; sp. ----.

Stouter than _C. odora_, and p. greyish, not green.

[=vilis=, Karst. P. convex, exp. umb. glabrous, pellucidly striate, livid, pallid when dry; g. decur. pallid; s. equal, wavy, glabrous, umber, apex white-scurfy, livid when dry; sp. 2.5-3.5 2.

[=bifurcata=, Weinm. P. exp. rather silky, clay-colour then pale, edge substriate; g. adnato-decur. simple or bifurcate, white; s. fibrillose.

=rivulosa=, Pers. P. 3-7 cm. exp. or depr. obtuse, flesh-colour, rufescent &c. then pale, glabrous then with white down; g. broad, rather crowded, faintly tinged pink; s. 4-5 cm. tough, rather fibrillose, whitish; sp. 6 3.5.

var. _neptunea_, Cke. Smaller than type.

[=rigidata=, Karst. P. rigid, plane, depr. unequal, even, glabrous, pallid then whitish; g. adnate, pallid; s. thickened upwards, often compr. rooting, pallid; sp. 4-5 2-3.

+++++ _Pileus white, shining when dry._

=cerussata=, Fr. White. P. 3-7 cm. plane, obtuse, even, subglabrous; g.

closely crowded, adnate; s. 4-5 cm. smooth, elastic; sp. ----.

var. _difformis_. Tufted, p. lobed; s. rugose; g. pallid.

var. _obtextus_, Lasch. Snow-white. P. fibrillosely interwoven then glabrous, rather viscid; g. subdecur. crowded.

[=puellula=, Karst. P. convexo-plane, sub.u.mb. even, glabrous, shining white; g. adnate, crowded, white; s. subequal, straight, elastic, white with blackish squamules; sp. 9-12 5-7.

Allied to _c.l.i.to. cerrusatus_ but smaller and with black squamules on stem.

[=adsentiens=, Karst. P. convexo-plane, obtuse, even, at length scaly, white; g. adnate, closely crowded, white; s. short, base thickened, white with blackish scales; sp. ----.

=phyllophila=, Fr. Whitish-tan. P. 3-7 cm. convexo-plane, umbil. not becoming pale, veil forming a silvery zone near margin; g. rather distant, white then pallid; silky-fibrous, tough, 5-8 cm.; sp. 6 4.

=pithyophila=, Fr. White. P. 3-7 cm. exp. umbil. glabrous, becoming shining white; g. crowded, permanently white; s. 4-5 cm. often compr.

base downy; sp. ----.

=tornata=, Fr. White. P. 3-5 cm. orbicular, subdepr. glabrous, shining; g. rather crowded; s. stuffed, glabrous, 3-4 cm.; 4-6 3-4 .

Very regular in form.

var. _opala_, Fr. White. P. viscid.

[=olorina=, Fr. Whitish. P. exp. even, glabrous; s. hollow, rigid, cylindrical, squamulose; g. subdecur. crowded.

=candicans=, Pers. White. P. 2-3 cm. plane or subdepr. umbil. with adpressed silkiness, shining white when dry; g. adnate then decur.

crowded; s. 3-5 cm. subfistulose, cartilaginous, shining; sp. 5-6 4.

=dealbata=, Sow. White. P. 2-3 cm. plane then upturned and wavy, glabrous, rather shining; g. adnate, crowded, white; s. 2-3 cm. entirely fibrous, thin, equal, stuffed; sp. 4-5 2.5.

=gallinacea=, Scop. White, taste acrid. P. depr. even, dry, opaque; g.

crowded, narrow; s. 2-3 cm. equal, even, solid; sp. ----.

Differs from _C. dealbata_ in dingy white, opaque p. and acrid taste.

** DIFFORMES. _Pileus fleshy at the disc, margin thin, umb. at first, then exp. depr. and irregular._

=decastes=, Fr. Cl.u.s.tered. P. 10-25 cm. wavy, sub.u.mb. glabrous, uniformly dingy brown or livid, then pale; g. crowded, wavy, white; s.

9-16 cm. long, solid, glabrous, white, apex pruinose; sp. globose, 4-5.

=subdecastes=, Cke. and Ma.s.s. Cl.u.s.tered. P. 3-5 cm. convex, obtuse, ochre, paler towards lobed margin; g. crowded, white; s. 8-12 cm.

fibrillose, whitish; sp. globose, 4-5.

=ampla=, Pers. P. 7-12 cm. convex then exp. wavy, sooty then livid, even; g. broad, smoky then dingy white; s. 9-14 cm. subcartilaginous, naked, white, apex somewhat downy; sp. ----.

[=molybdina=, Bull. P. camp. exp. umb. glabrous, sooty, disc livid rufous, then pale; g. horn colour then pallid; s. stout, fibrillosely striate, mealy squamulose upwards, pallid.

[=coffeata=, Fr. P. brownish fawn then sooty grey, fawn colour and shining when dry, virgate or spotted; g. decur. dingy white, as is also the glabrous s.

=aggregata=, Schaeff. Tufted. P. 5-9 cm. wavy, greyish or reddish yellow, then pale, silkily virgate; g. yellowish flesh colour; s. 7-10 cm. fibrillose, narrowed below and often grown together at base; sp.